The foot warmer is made of high-quality materials, safe and environmental, it can warm your feet at all times. The warm foot patch keeps heating, uniform heat dissipation, lasting heating time, and heating time can last 8 hours. Always warm your feet. The foot warmer is light and convenient, it can be carried with you, and is easy to store. this warm foot patch is very suitable for various indoor and outdoor activities, such as hunting, hiking, horseback riding, fishing, cycling, driving, running, camping, skiing, mountaineering, walking, etc. It is also a Christmas gift, Thanksgiving gift, an ideal gift for parents and so on.